One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,9,11,6)(4,12)(5,8)(7,13)(10,14,16,15)(17,18)(19,25,27,32)(20,24)(21,23)(22,26,30,28)(29,31)(33,34,37,40,38,41,36,45)(35,42,43,47,44,39,46,48)(1,3)(2,6)(4,10)(5,11)(7,14)(8,9)(12,15)(13,16)(17,19)(18,22)(20,28)(21,27)(23,30)(24,32)(25,31)(26,29)(33,35)(34,39)(36,43)(37,46)(38,44)(40,47)(41,42)(45,48) involution — undirected(4,13)(7,12)(10,16)(14,15)(18,23)(22,30)(24,31)(25,32) involution — undirected(1,4,5,13)(2,7,8,12)(3,10,11,16)(6,14,9,15)(33,36,38,37)(34,40,41,45)(35,43,44,46)(39,47,42,48)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.